Smart Games SG 423 IQ FIt – IQ GamesFit all the 3D-puzzle pieces on the game board in such a way that it turns into a (flat) 2D-image. One of the protruding sides of each puzzle piece has 1 ball, the other side has 2 balls. So depending on how you orientate a puzzle piece, you get more or less balls. When solved, all puzzle pieces will fit on the game board without any holes uncoveredt Games – IQ LinkCan you find the missing link? Fit all the puzzle pieces onto the SmartGames – IQ Link game board, but watch out There are 36 puzzle parts but only 24 free places on the game board Open rings and balls of different puzzle pieces can occupy the same place when you link them the right way. IQ Link is a compact travel game including 120 multi-level challenges, and helps stimulate the following cognitive skills – Concentration, Logic, Planning, Problem Solving, Spatial Insight.